3com 5500-ei pwr Installation Instruction

 

1-5 

Figure 1-5 Multicast mode 

 

 

 describes how the above mentioned NTP modes are implemented on 3Com S5500-EI series 

Ethernet switches. 

Table 1-1 NTP implementation modes on 3Com S5500-EI series Ethernet switches 

Server/client mode 

Configure the local S5500-EI Ethernet switch to work in 
the NTP client mode. In this mode, the remote server 
serves as the local time server, while the local switch 
serves as the client. 

Symmetric peer mode 

Configure the local S5500-EI switch to work in NTP 
symmetric peer mode. In this mode, the remote server 
serves as the symmetric-passive peer of the S5500-EI 
switch, and the local switch serves as the 
symmetric-active peer. 

Broadcast mode 

z 

Configure the local S5500-EI Ethernet switch to work 
in NTP broadcast server mode. In this mode, the local 
switch broadcasts NTP messages through the VLAN 
interface configured on the switch. 

z 

Configure the S5500-EI switch to work in NTP 
broadcast client mode. In this mode, the local 
S5500-EI switch receives broadcast NTP messages 
through the VLAN interface configured on the switch. 

Multicast mode 

z 

Configure the local S5500-EI Ethernet switch to work 
in NTP multicast server mode. In this mode, the local 
switch sends multicast NTP messages through the 
VLAN interface configured on the switch. 

z 

Configure the local S5500-EI Ethernet switch to work 
in NTP multicast client mode. In this mode, the local 
switch receives multicast NTP messages through the 
VLAN interface configured on the switch.